Valve.



J. L FULLER.

' VALVE.

APPLICATION FiLED APR, 20, I914.

Patentedfiug: 31, 1915.

WITNESSES.

an smarts airmen oa meaf JOHN LANSING- rn'mna, or DETROIT. momenta, assrenon r0 ns'rnorr nnnnrca'ron COMPANY, 65 DETEGIT, MICHIGAN, A. COBPOEA TION OF MICHIGAN.

VALVE.

To all whom it may concern:

Be it known that 1, JOHN Laxsrxo FUL- LER, a citizen of the United States of America, residing at Detroit, in the county of Wayne and State of Michigan, have invented certain new and useful Improvements 1n Valves, of which the following is aspecification, reference being had therein to the accompanying drawings.

The invention relates to valves of the gate type and has particular reference to the means for sealing the operating stem with out the employment of the usualpacking and gland.

In the drawing, a valve of my improved construction is shown in longitudinal section.

A is the valve casing which is of T-form and provided with the opposed angling seats B for a gate member C. This member is of the usual construction having opposite hinged gates 'C and C and a threaded sleeve or 'nut member D engaging the threaded operating stem E.

The stem E is swiveled in a cap member F which has a web or internal flange G engaging a collar H on said stem, while above this collar is a washer or bearing plate I. This, as shown, is held in place by'a threaded sub-cap member J engaging a threaded portion in-the member F. The portion of the stem E above the washer I is provided with a square or polygonal head K which engages a correspondingly formed socket L in an axially alined stem member M within the sub-cap member J. This stem member has a head or beaded collar N for engaging an annular sealing disk 0, the opposite face of which bears against an apertured web or internal flange P in the sub-cap member J.

Q is an operating handle which is provided with a hollow stem or follower R engaging a recess in the sub-cap member J and bearing against an annular washer S of soft material forming an anti-friction bearing which holds the hollow stem or follower R, from an end thrust bearing upon the sub- ,cap member. The stem M is squared at M,

to engage the hollow stem or follower R and a spring T within the hollow stem and recem in the handle, operates to exert a drawing tension on-the stem M and the hollow stem R, which presses the packing washer O and bearing washer S against the opposite sides of the web member P. I

pecification' of Letters Patent.

Patented Au 31, was.

Application filed 51111120, 1914. Serial No. 833,288

With. the construction above described in use, the operating stem is efi'ectively sealed f1 om leakage by the washer O. which on one of an anti-friction bearing, preventing a ntetal to metal contact of the stem and casing.

Whenever the operatinghandle Q is turned. rotary motion is communicated from the hollow stem R to the stem M and from the latter to the threaded stem'E. This will communicate a transverse movement to the gate C. and it will be noted that there is no reaction upon the sealed stem 'M which would tend to separate it from the sealing washer. This is for the reason that the stem M is not longitudinally moved-by the stem E and therefore the unavoidable longitudinal movement of the latter due to the reaction of the valve gates C when releasing them from their seats, will not be communicated to the stem M.

What I claim as my invention is 1. In a valve, the combination with the casing, of a threaded stem for actuating the valve, a cap member for said casing having a swiveled bearing for said threaded stem, 2 second cap member, an axially alined stem in said second cap member rotatively coupled to but axially free from said threaded stem, a sealing disk between said alined stem and second cap member, an operating handle for said stem, and means for holding sai stem and sealing ring in contact.

'2. In a valve. the combination with a swiveled and threaded stem for actuating the valve, of an alined stem rotatively coupled to but axially free therefrom, a cap member in which said alined stem is swiveled, a sealing ring between opposed bearings on said cap member and stem swiveled therein, an operating handle rotatively coupled posed anti-friction bearing, and a resilient member opposed to the bearing of said sealing washer thereon. I j 3. In a valve, the combination with a swiveled and threaded stem for'directly actuating the valve, of an alined stem rotatively coupled to but axially free from said' threaded stem, said latter stem being providedwith an annular enlarged bearing, a cap'member having a. bearingopposed to said annularbearing, a sealing washer between said bear-' ings upon said stem and cap member, an

anti-friction .end thrust bearing opposed to the bearing for said sealing'washer on said cap,. a hollow'stem member slidably engage ing saidj alined stemand engaging said optensioning meansbetween said alined stem and, hollow stem for holding said sealing ring and hollow stem in'contact with their opposed bearings on said ca member.

4. Ina valve, the 'combinatlon with a' casing, of a cap 'member,- a threaded stem for operating the valve swiveled in said; cap

' member, a second ap memberreces'sed'i at its opposite ends with an intermediate web, a stem axially alined with said threaded stemrotatively coupled but, axially'free there-f from and swiveled insaid intermediate web Y of said second cap member,-said alined stem having anannular shoulder opposed to said web, a sealingring interposed between said shoulder and opposed web in the inner recess-of said'second cap member, a bearing ring inthe outer recess of said second :capmember-on the opposite-side of said web,' a.

l handle having a hollow stem telescopically therein, and a spring within. sai stem for drawlng sald alined stem in conengaging said alined stem and rotativelgy "coupled thereto, said hollow stem extending into an outer recess in said second cap membera'ndbearing against said bearin washer hollow v 'tact with said sealing washer.

" a'nd longitudinally fixed therein, of a cap '5. In a valve, the combination with the casing and a valve-operating stem swiveled member having recesses in'its opposite ends iw th 'anintermedi'ate web, a stem swiveled said intermedlate, web alined with saidvalve-operating stem and rotatively coupled but axially freetherefrom, said alined stem having an annular shoulder opposed to said web, a sealing washer between said. shoulder and web, resilient te'nsioning means for holding said alined stem with its shoulder pressed in contact with said sealing ring and against said web, an anti-friction bearing in said recess on the opposite side of said webtforming the opposed bearing for said tensioning means, and a handle for operating said stem.

5) In a valve, the combination with'a .cas-- ing, of a cap member, a valve-operating stem I member having recesses in its opposite ends and an intermediate web, a stem swiveled coupled thereto butaxially free, an-annular shoulder on said alined stem opposedto said web,-a, sealing washer intermediate said an-' .nular shoulder and web, an anti friction bearing upon the oppositeside of said web in the recess in'said second cap member, an operat ng handle having a 'hollowstem ro- "tatively coupled but longitudinally slidable' swiveled in said cap member, a second cap 1n said intermediate web in alinement with said valve-operating stem, being rotatively' upon said alined stem,the end of said hollowv stem seating against said anti-friction bearmg in sald recess, and a spring within said holIow v stem for. drawing saidalined stem against said sealing ring' and reacting against said anti-friction bearing.

.. 7..In' avalve, the combination with a swiveled. and threaded stem for actuating the valve, of a cap member in which said stem is swiveled, an alined stem rotatively coupled to but axially free from said threadeds'tem, asecond cap member in which said alined stem is swiveled provided with an internal flange, washers upon opposed sides of said flange, and resilient means'for supporting;saidalined stem and for pressing 3 

